Very nice I'd say. I bought it for my Surface RT when it was on sale for $3 bucks. Still haven't played it though. It'll be interesting to see how much it cost on steam. Also, looking at recommended system requirements make me wonder if I wouldn't be better off playing the steam version on my desktop anyway.

Disappointed to see that Mac and Linux ports won't also available. Maybe that'll come later, though since this is Microsoft I'm somewhat less than hopeful.